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Posts Made By: Kim Colter

March 1, 2007 10:07 PM Forum: Zeiss

Monocentric

Posted By Kim Colter

In the interest of stimulating a little response on this forum I will post about some recent observations using a Zeiss 10mm monocentric eyepiece. I observed Saturn through it at WSP (20 inch Starmaster) when Saturn was straight overhead and here in Missouri looked at M13 (V11 Starmaster) with it in the pre-dawn hours last week. I compared the view of M13 in the monocentric to a 9mm Nagler immediately afterward. Obviously the field of view was miniscule in the monocentric compared to the Nagler, but it was quite striking how much brighter and crisper (for lack of a better word) the brightest stars in the cluster were with the monocentric than in the Nagler. The view of Saturn at the zenith at WSP in the 20 Starmaster with the monocentric was superb. There have been comments on other forums saying that WSP seeing this year wasn't up to Florida Keys standards, but even average seeing in the Florida Keys allows some astonishing sights. I was able to see the Pup again this year with both of the above Starmasters. Last year at WSP the Pup was seen nightly with ease by many observers through many instruments across the field.

August 27, 2007 01:40 AM Forum: Sports

Kiwi astronomer coaches rugby team to championship

Posted By Kim Colter

Kevin Barker, Zeiss afficianado, master of the southern skies, and St. Peter's college lightweight rugby coach has taken his charges to the championship game of the Auckland environs and defeated Auckland Grammar for the league championship in a hard fought 12-7 contest this Saturday. I couldn't resist posting a note about the athletic prowess of one our own forum members. Strong work, Kev.

August 27, 2007 01:43 AM Forum: Zeiss

Zeiss afficianado coaches team to rugby championsh

Posted By Kim Colter

Our very own Kevin Barker coached his St. Peter's college charges to a hard fought 12-7 victory over Auckland Grammar to secure the championship for the Auckland region this Saturday. Kudos to Kevin!

August 27, 2008 12:47 PM Forum: Deep Sky Observing

Guitar Nebula in Cepheus

Posted By Kim Colter

Two nights ago my observing buddy, Bob Kirschenmann, and I were able to see the Guitar nebula in Cepheus as faint nebulosity. Bob knows this star field very well--I would not have seen it without his help and knowledge. It was a splendid night. We were able to see Pease 1 in M15 and the tiny galaxy adjacent to the ring nebula as well. Scope was 40 inch f5 Dob. I am finding that the 8mm (625X) and 13mm (384X) Ethos are worth every penny when the seeing is good enough to allow this much mag.

January 5, 2010 02:07 PM Forum: Birding Optics and Photos

Tripod adaptation for Zeiss diascope

Posted By Kim Colter

Has anyone adapted the Zeiss 85mm Diascope to a TeleVue Gibraltar tripod and mount? If so, how did you go about it? Is there another tripod that you feel is a better idea than the TeleVue one? (I have the TeleVue tripod.) Thanks

May 6, 2010 07:06 PM Forum: Star Parties

european star parties summer 2010

Posted By Kim Colter

Is there a site with information about European star parties/dates/fests for July and August 2010? Thanks

May 1, 2002 04:09 PM Forum: Deep Sky Observing

Pluto

Posted By Kim Colter

Maurice
Thanks for the chart! My partner's 6 year old son has an infatuation with astronomy and has been saying he wanted to see it. I got him and his father up early for a 3 AM soiree out to the big Dob to "find Pluto." With the help of the chart in Sky and Telescope and the Sky Commander I am sure I showed him the field it was in but couldn't honestly say which small point of light it was. The chart will help if I can talk his dad into another adventure. My hope is that the galaxies, globular clusters, and planetary nebula the youngster saw were more impressive than the look at "Pluto."

June 10, 2002 12:29 PM Forum: Deep Sky Observing

Anti-Reflection Coatings on Eyeglasses?

Posted By Kim Colter

Crizal only lasted about 18 months on my lenses and wore off in a pattern consistent with the outer rim of 1.25 inch eyepieces. It does make a difference in light transmission, however. I think my next pair of glasses will not have it because of the durability factor.

August 26, 2002 10:53 PM Forum: Deep Sky Observing

Unusual star image

Posted By Kim Colter

Ryan
I think Kevin is correct about astigmatism in your eye.
The exit pupil for the scope/eyepiece combination is 5mm. If you Barlow the eyepiece or go to a very short focal length eyepiece such as a 5 to 7 mm I bet the effect goes away. If not then your collimation is probably the issue.
Defects in your own eye show up at low magnifications and large exit pupils. Defects in your optics show up at high magnifications and small exit pupils.

September 15, 2002 10:08 AM Forum: Equipment Talk

Sometimes a $30 ep is better than a $350 ep

Posted By Kim Colter

Doug
Since reading the cloudy nights article that extensively evaluated planetary eyepieces and gave highest recommendations to Zeiss Abbes, TV Plossls, and Edmund RKE's, I have been thinking that if these orthos and plossls outshine the wide angle eyepieces on planets and lunar images, why wouldn't they on deep sky as well? As more large Dobs are equipped with drive systems and sky commanders the incentive to have wider field of view to find and track objects diminishes. I have also had the experience of seeing subtle detail in diffuse and planetary nebulae with orthoscopic eyepieces that wide field eyepieces did not reveal. Gotta remember to take that case of "planetary" eyepieces with me when I go to the big Dob...